Temper-screw.



No. 813,378. PATENTED FEB. 20, 1906. B.l C.. HAGAN. TEMPER SCREW APPLIOATION FILED MAY zo. 1905.

TINTTEE STATES PATENT EEICE.

BARRET C. HAGAN, OF WEST MONTEREY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO C. M. HAGAN, OF WEST MONTEREY, PENNSYLVANIA.

TENIPER-SCREW.

Specication of Letters Patent.

Patented Feb. 20, 1906.

1"() @ZZ 'wl/mnt t may concern;

Be it knovvn that I, BARRET C. HAGAN, a citizen of the United States of America, re-

siding at West Monterey, in the county of Clarion and State of Pennsylvania, have invented certain new and useful Improvements in Temper-Screws, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in temper-screws, and more particularly to that type of screw employed in connection with well-drilling tools, the temper-screw being used to attach a drill-rope to a working beam.

The object of this invention is to provide a novel form of temperscrew wherein novel means is employed for retaining the screw to its elevated position within the reins of the device, thereby dispensing with the use of manual labor to accomplish this result.

Brieiiy described, my improved temperscrew comprises a head or T carrying depending reins, to the ends of which are detachably connected blocks through which the screw proper is adapted to operate. The one end of the screw is adapted to be clamped to the drill-rope, while the other end of the screw is rotatably connected to a spring mounted in the head or T of the temper-screw.

The above construction will be hereinafter more fully described and then specifically pointed out in the claims, and, referring to the drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which- Figure 1 is a vertical sectional View, partly in side elevation, of myimproved temperscrew. Fig. 2 is a transverse sectional view taken on the line y y of Fig. 1. Fig. 3 is an enlarged detail view of the swiveled connection between the screw and the spring of my improved device, and Fig. 4 is an enlarged detail view of the swivel connection. F ig. 5 is a vertical sectional view of my improved temper-screw. Fig. 6 is a side elevation of the same, taken from a position at right angles to that from which Figs. 1 and 5 are taken. Fig. 7 is a detail view in perspective of the support for the temper-screw.

In the accompanying drawings I have illustrated a temperescrew consisting of a head 1, having a vertically-disposed recess 2 formed therein. The head carries depending reins 3 3, to the lower ends of which are detachably connected blocks 4 4 by suitable set-screws 5 5. The confronting 4faces of the blocks 4 4 are threaded, as indicated at 6, forming a screwethreaded aperture through which a screw 7 passes.

In the head 1 is secured by a suitable bolt 8 the one end of a coiled spring 9, the lower end of the spring being provided with a ring 10,V supporting an annular head 12. This head is provided with an aperture 14, through which the upper end of the screw 7 is adapted to pass, and is revolubly secured therein by a collar 15, which is preferably secured in engagement with the upper end of the screw by a suitable key 16. The head 12 is provided with an annular race 12', in which are mounted balls 14. The lower face of the collar 15 .is also provided with a race 16, which engages the balls 14. The lower end of the screw 7 is provided with the ordinary links 17 17, commonly employed for securing the lower end of the screw to the drill-rope clamp.

The reference-numeral 18 designates the Walkingbeam of a suitable well-drilling machine which is adapted to transmit and apply power to the drill. the ordinary stroke of beams commonly used and may be secured to the temper-screw by any desired means. The bolt 8 passes through a slot 19 in the end of the walkingbeam 18, and said bolt is formed with a T- head which rests in notches 20 20, that are formed in top of the walking-beam 18 and is secured therein by means of blocks 21 21.

In operation the screw 7 is adapted to slowly feed through the blocks 4 4, the feeding ofthe screw being effected by turning the same, which operation may be performed by the operator grasping the links 17 17 in his hands or by putting a crowbar through the same and then turning the screw until the swiveled end of the screw has reached the blocks, at which time it is necessary that the reins be moved outwardly sufiicient to permit of the screw being returned to its normal position. The ireins are moved outwardly by the operators who grasp the reins in their hands and pull them apart, this operation drawing the blocks 4 4 a art and permitting the screw to be pu led upwardly by the spring. I-Ieretofore the elevating of the This walking-beam has.

IOO

screw has been done manually, and for this reason I have devised the spring 9, which is adapted to return the screw 7 to its normal position when released by the blocks 4 4. The' downward movement of the screw 7 places the spring under tension, and the spring is adapted to be made of suiiicient strength and tension to lift the screw when released. The head or T l of the temperscrew is adapted to form a cushion and prevent any displacement of the spring during its return movement.

While I have herein described the preferred manner of constructing my improved temper-screw, it is obvious that various changes may be made in the details of construction without departing from the general spirit and scope of the invention.

What I claim, and desire to secure by Letters Patent, is

1. In a temperscrew, the combination with al walking-beam, of a head carried by said walking-beam, depending reins carried by said head, blocks detachably connected to the lower ends of said reins, a screw operating through said blocks, a suspension-spring mounted in said head and swivelly connected to the upper end of said screw, substantially as described.

2. In a temper-screw, the combination with a walking-beam, of a head connected to said walking-beam, depending reins carried by said head, a screw operating between said reins, a spring mounted in said head and swivelly connected to said screw, substantially as described.

3. In a temperscrew, the combination with a hollow head, having depending springreins, screw-threaded blocks detachably connected to the lower ends of said reins, a screw arranged between said blocks, a collar carried by said screw, an annular head surrounding the screw below said collar, antifriction-balls arranged between said annular head and said collar, a ring attached to said annular head 

